Combined valve and coupling



June 14, 1949. A. 1'. SCHEIWER' 2,473,223

COMBINED VALVE AND courmue Filed March 29, 1947 2 Shee ts-Sheet 1 Elma/14M A. T. SCHEIWER OOMBINED vAm/E AND COUPLING June 14, 1949.-

' 2 Sheets-Sheet 2 Filed March 29', 194"] Patented June 14, 1949 UNITED STATES PATENT OFFICE COMBINED VALVE AND COUPLING Albert T. Scheiwer, Erie, Pa.

Application March 29, 1947, Serial No. 738,043

6 Claims. (01. 284-48) This invention relates generally to a combined valve and more particularly to a combined valve and coupling for high pressure lines.

All devices of this character made in accordance with the teachings of the prior art, and with which I am familiar, have not been adaptable for use in high pressure lines because of the force necessary to move parts of the coupling member against the force of the fluid in the line. No satisfactory coupling connection with valves has been heretofore provided for a high pressure line.

It is, accordingly, an object of my invention to provide a combined valve and snap coupling for a high pressure fluid line which is simple in construction, economical in .cost, efiicient in operation, and economical in manufacture.

Another object of my invention is to provide a combined valve and snap coupling for high pressure fluid lines wherein no fluid is lost upon connection.

Another object of my invention is to provide a double check valve in the female member of a coupling;

Another object of my invention is to provide means for holding a locking sleeve out of engagement with camming members of a female member of a coupling when the coupling is disconnected.

Other objects of my invention will becomeevident from the following detailed description, taken in conjunction with the accompanying drawings, in which:

Fig. 1 is a side elevational view partly in cross section of the male and female members of my novel coupling in a disconnected position;

Fig. 2 is a side elevational view with one side thereof broken away showing my novel coupling members connected together with both the male and female members still sealed;

Fig. 3 is a side elevational view with one side thereof broken away of my novel coupling with the check valves in the female member in an open, unsealed position;

Fig. 4 is a view taken on the line 4-4 of Fig. 3;

Fig. 5 is a view taken on the line 5-5 of Fig. 3;

Referring now to the drawings, Figs. 1 to 5, inclusive, show a female member I comprising a sleeve 2 having ball retaining apertures 3, inner peripheral groove 4, inner shoulders 5 and 6, stepped outer shoulders I and 8, externally threaded portion 9, and internally threaded portion ID. A stop member |2 is threadably engaged with the threaded portion 9 of the sleeve 2 to form a stop for the locking sleeve l3 having a camming portion l4 for locking engagement with ball members l5 disposed in ball retaining apertures 3 of the sleeve 2. Spring l6 urges the camming portion ll of the locking sleeve I3 into locking engagement with the ball members I5. An inner sleeve I! has oppositely disposed end fianges I8 and I9, the outwardly extending flange l8 engaging the shoulder 5 of the sleeve 2. Check valve 2| is disposed in the sleeve I1 and has a sealing portion 22 for sealing engagement with the inner flange l8 of the sleeve H. The check valve 2| has a longitudinally extending stem 23 forming a guide for a spiral spring 24 which urges the sealing portion 22 of the check valve 2| in sealing engagement with the inner flange l8 of the sleeve l1. Sleeve 25 has an inner flanged portion 26 with an upwardly extending annular projection 21 forming a cut-away portion 28 for nesting one end of the spring 24 and a cutaway portion 29 for receiving a washer 30 which is disposed between the sleeve 25 and shoulder 6 of the sleeve 2. A check valve 32 is disposed in the sleeve 25 and has a sealing portion 33 and washer 34 for sealing engagement with the flanged portion 26 of the sleeve 25. A stem 35 extends longitudinally of the check valve 32 for forming a guide for a spiral spring 36 having the outer end thereof held by a spring clip 38 disposed in a groove 39 in the sleeve 25. The sleeve 25 is held in the sleeve 2 by threaded cap member 40 threadably engaged with the internally threaded portion H! of the sleeve 2. A double U-shaped Washer 42 is disposed in the groove 4 of the sleeve 2.

A male member comprises a cylindrical member 5| having a peripheral groove 52, a laterally extending threaded aperture 53, longitudinally extending central aperture 54, a reduced threaded portion connecting the aperture 54, an enlarged threaded portion 56, and a counterbore 51, forming a seat 58. A stem 59 has a threaded portion 60 for threadably engaging threaded portion 55 of the cylindrical member 5| and has an enlarged head 62 with a sealing washer 63 attached thereto for sealing engagement with the seat 58 in the cylindrical member 5|. The upper end of the valve stem 59 has a handle 64 for rotation of the valve stem 59. Suitable packing 65 is disposed around the valve stem 59, and a threaded gland member 66 threadably engages the threaded portion 56 of a cylindrical member 5| to provide a seal for the upper end of the valve stem 59. A branch fitting 10 having threaded portions H and 12 threadably engages the threaded aperture 53 in the cylindrical member 5 When the male and female members and 50 are disconnected, the locking sleeve I3 is normally held in the position shown in Fig. 1, by the ball members I5 forced outwardly by sleeve l1. By inserting cylindrical member 5| of the male member 50 into the sleeve 2 of the female mem ber I, the sleeve H moves longitudinally to a position shown in Fig. 2, wherein the ball members l5 engage the groove 52 of the male member 50, and the camming portion [4 of the locking sleeve l3 moves against thestop member l 2.to.lock the ball members l5into docking engagement with the groove 52 of the male member 50. By rotating the handle 64 of the valve stem 59, the valve stem 59 moves longitudinally, thereby breaking the seal between the Washer 53 andthe seat- 58, and also, upon further movement, theseal'between the flanged portion l8 of the sleeve H in the female member I and the seating portion 22 of the check valve 2|. Upon further longitudir nal movement of the valve stem 59, the stem 23 of the check valve Zi engages .the check valve 32 tomove the washer (out of sealing engagement with the; flange 2610f thes1eeve'25, thereby per.- mitting fluid to flow through both members of the coupling.

It will be evident is inserted into the. female member '1, there is practically no pressure behind the check valve2l against which the male member must be forced. This coupling, thereforejpermits the connection ofa snap ball type coupling in fluid lines, where :2

the pressure is'ifive hundred or more pounds per square inch....The check valve 32', which checks the fluid underhigh pressurein the fluid line is not opened untilthe male and female members 2 and 50 are securely. connected together. My '2;

novel coupling requires no manual intervention upon} connection of the male andrlfemale members 2, and 5 0 and the locking is done automatically upon insertion of the male member 50 into the female member].

Various changes may be made in the, specific embodiment 'oflimy invention without departing from the spirit thereof, or from the scope of the appended claims.

WhatIclaimisz.

1. A coupling comprising. a; female member having a fixed and, a..m ovable flanged sleeve therein, check. valVessealingly engaging said flanged sleeves Lin said female member, cammin members engaging by said rnovable sleeve, looking means for said camm'ing' members, a male member for disposalcin saidufemale member adapted to. move said movable; sleeve longitudinallyin said female memberand havinga groove for locking engagement by thecamminglmembers of said female member, and a longitudinallyrmovable. manually operated valvein. said male mem.

ber adapted .to move. said. check valves in said,

iemale member longitudinally progressively.

2. A coupling comprising a female member that when the male member flanged sleeve disposed therein, spring urged check valves adapted to sealingly engage the flanged portion of said sleeves, camming members carried by said female member adapted to be engaged by said movable sleeve, locking means for said camming members, a male member having a peripheral groove adapted to be disposed in said female member and also adapted to move said. movable sleeve longitudinallyout of engagemerit-1 i h. aid ca aime b rse nd a lon itudinally movable manually operated valve in said male member having an enlarged lower end for sealingly engaging a seating portion on said male'mem-ber and adapted to move said check ,valves in said female member longitudinally progressively.

3. Acouplingasset forth in claim 2 wherein said check valve in said movable sleeve has an outwardly extending stem adapted to engage the check valve in said fixed sleeve to open said check al J m L 41 A coupling as set forth in claimZWherein said male member has a laterally extending fluid connection; 1 g

. A cou li t. i rth nc a m 2 wherein aid female m has. a o posit ly d ect d U j-shaped washer for sealingly engaging the movable sleeve disp sedtherei a A c up n c mprisin a mem e movable flan ed sle ve n. sa dzfemale m mber. ramming member ai .tema memb adap d to. be engaged by. said sleeve when ai female. memberis di connected .lockinsmeans or id cammmamem rs on. said lemme member. a male er. h v ng. .a c n ec ing. rtionw tha peripheral groove for, disposal said female mber. adapted mo emsaidlfl n edl s e n itudinally; an b .lqtkine r. eneaeedbyv the camming members of said female member, said; male .membenha i s. a, nEi udinalborQ, and, a stem extending through saicLbore having a seat-. ing member on the lower portion thereof for seal inslvensa n saidmale m e ...s id.s em be adaptedto mqvethe check yalve in said sleeve of said fema e. m mbe longitud a ly og sively on, connection of said male and said female members. ALBERT T. SCI-IEIWER,

REFERENCES QI'EED g n v The following references are of record in the file of thiapatentz... UNITEQ STATES PATENTS Date; I

Paisley June 11, 1940 

